Microsoft Surface Hub 2 SmCamera - Manual (Page 395)

Action Where Notes
Check
Group
Policy
settings External
device
(domain
joined) On domain-joined devices only, Group Policy can also block
Miracast.
1. Press Windows Key + R and type rsop.msc. The Resultant Set of
Policy snap-in shows the current policy settings applied to the PC.
2. Review Computer Configuration > Windows Settings > Security
Settings > Wireless Network (IEEE 802.11) Policies . There should
be a setting for wireless policies.
3. Double-click the setting for wireless policies, and a dialog box
appears.
4. Open the
Network Permissions tab and select Allow everyone
to create all user profiles .
Check
Event
logs External
device/Surface
Hub The last place to check is in the Event logs. Miracast events are
logged to
Wlanautoconfig on both Surface Hub and the external
device. If you export Surface Hub logs, you can view Surface Hub's
Wlanautoconfig in the
WindowsEventLog folder. The event log
errors can provide more details on where the connection fails.
After wireless projection is connected, it's possible to see performance issues causing
latency. This is generally a result of overall channel saturation or a situation that causes
channel switching.
For channel saturation, refer to the network scan and use channels with less traffic.
Channel switching is caused when the Wi-Fi adapter needs to send traffic to multiple
channels. Specific channels support Dynamic Frequency Selection (DFS). DFS is used on
channels 49 through 148. Some Wi-Fi drivers show poor performance when connected
to a DFS channel. If you see poor Miracast performance when connected to a DFS
channel, try the projection on a non-DFS channel. Both Surface Hub and the external
projecting device should use non-DFS channels.
If Surface Hub and the projecting device are connected to Wi-Fi but use different access
points with different channels, forced channel switching degrades performance when
Miracast is connected. The channel switching affects the performance of all wireless
traffic, not just wireless projection.
Channel switching will also occur if the projecting device is connected to a Wi-Fi
network using a different channel than Surface Hub's channel for Miracast. So, a best
practice is to set Surface Hub's Miracast channel to the same channel as the most
Troubleshoot connection performance